1 /* 2 * Emma Mobile EV2 processor support 3 * 4 * Copyright (C) 2012 Magnus Damm 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; version 2 of the License. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 18 */ 19 #include <linux/clk-provider.h> 20 #include <linux/kernel.h> 21 #include <linux/init.h> 22 #include <linux/of_platform.h> 23 #include <mach/common.h> 24 #include <mach/emev2.h> 25 #include <asm/mach-types.h> 26 #include <asm/mach/arch.h> 27 #include <asm/mach/map.h> 28 29 static struct map_desc emev2_io_desc[] __initdata = { 30 #ifdef CONFIG_SMP 31 /* 2M mapping for SCU + L2 controller */ 32 { 33 .virtual = 0xf0000000, 34 .pfn = __phys_to_pfn(0x1e000000), 35 .length = SZ_2M, 36 .type = MT_DEVICE 37 }, 38 #endif 39 }; 40 41 void __init emev2_map_io(void) 42 { 43 iotable_init(emev2_io_desc, ARRAY_SIZE(emev2_io_desc)); 44 } 45 46 void __init emev2_init_delay(void) 47 { 48 shmobile_setup_delay(533, 1, 3); /* Cortex-A9 @ 533MHz */ 49 } 50 51 #ifdef CONFIG_USE_OF 52 53 static void __init emev2_add_standard_devices_dt(void) 54 { 55 #ifdef CONFIG_COMMON_CLK 56 of_clk_init(NULL); 57 #else 58 emev2_clock_init(); 59 #endif 60 of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); 61 } 62 63 static const char *emev2_boards_compat_dt[] __initdata = { 64 "renesas,emev2", 65 NULL, 66 }; 67 68 DT_MACHINE_START(EMEV2_DT, "Generic Emma Mobile EV2 (Flattened Device Tree)") 69 .smp = smp_ops(emev2_smp_ops), 70 .map_io = emev2_map_io, 71 .init_early = emev2_init_delay, 72 .init_machine = emev2_add_standard_devices_dt, 73 .init_late = shmobile_init_late, 74 .dt_compat = emev2_boards_compat_dt, 75 MACHINE_END 76 77 #endif /* CONFIG_USE_OF */ 78